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Abstract #113273 Published in IGR 24-3
Potential antioxidant, anticholinergic, antidiabetic and antiglaucoma activities and molecular docking of spiraeoside as a secondary metabolite of onion ()
Durmaz L; Kiziltas H; Karagecili H; Alwasel S; Gulcin İSaudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society 2023; 31: 101760
Onion contains many dietary and bioactive components including phenolics and flavonoids. Spiraeoside (quercetin-4-O-β-D-glucoside) is one of the most putative flavonoids in onion. Several antioxidant techniques were used in this investigation to assess the antioxidant capabilities of spiraeoside, including 1,1-diphenyl-2-picrylhydrazyl radical (DPPH·) scavenging, N,N-dimethyl-p-phenylenediamine radical (DMPD) scavenging, 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulphonate) radical (ABTS) scavenging activities, cupric ions (Cu) reducing and potassium ferric cyanide reduction abilities. In contrast, the water-soluble α-tocopherol analogue trolox and the conventional antioxidants butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA), and α-tocopherol were utilized as the standards for evaluation. Spiraeoside scavenged the DPPH radicals an IC of 28.51 μg/mL (r: 0.9705) meanwhile BHA, BHT, trolox, and α-tocopherol displayed IC of 10.10 μg/mL (r: 0.9015), 25.95 μg/mL (r: 0.9221), 7.059 μg/mL (r: 0.9614) and 11.31 μg/mL (r: 0.9642), accordingly. The results exhibited that spiraeoside had effects similar to BHT, but less potent than α-tocopherol, trolox and BHA. Also, inhibitory effects of spiraeoside were evaluated toward some metabolic enzymes including acetylcholinesterase (AChE), butyrylcholinesterase (BChE), carbonic anhydrase II (CA II) and α-glycosidase, which are related to a number of illnesses, such as Alzheimer's disease (AD), diabetes mellitus and glaucoma disorder. Spiraeoside exhibited IC values of 4.44 nM (r: 0.9610), 7.88 nM (r: 0.9784), 19.42 nM (r: 0.9673) and 29.17 mM (r: 0.9209), respectively against these enzymes. Enzyme inhibition abilities were compared to clinical used inhibitors including acetazolamide (for CA II), tacrine (for AChE and BChE) and acarbose (for α-glycosidase). Spiraeoside demonstrated effective antioxidant, anticholinergic, antidiabetic and antiglaucoma activities. With these properties, it has shown that Spiraeoside has the potential to be a medicine for some metabolic diseases.
Department of Medical Services and Technology, Cayirli Vocational School, Erzincan Binali Yildirim University, 24500, Cayirli, Erzincan, Turkey.
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